Means for regulating level of liquid in carbureting apparatus.



No. 635,2l0. Patented Oct. l7, I899.

A. l. VAN VRIESLA'ND. MEANS FOR REGULATING LEVEL OF LIQUID IN CARBURETING APPARATUS.

(Application filed Apr. 21, 1899.)

(No Model.)

ATTORNEYS UNITED; STATEs PATENT @rrrcn ADOLPHE ISIDORE VAN VRIESLAND, OF AMSTERDAM, NETHERLANDS.

MEANS FOR REGULATING LEVEL OF LIQUID IN CARBURETING APPARATUS.

SPECIFICATION forming part of Letters latent No. 635,210, dated October 17, 1899.

Application filed April 21, 1899. Serial No. 713,967. (No model) To aZZ iuhont it may concern.-

Be it known that I, ADOLPHE ISIDORE VAN VRIEsLAND, engineer, a subject of the Queen of the Netherlands, residing in Amsterdam, in the Netherlands, have invented new and useful Improvements in Means for Regulat ing the Level of the Liquid in Oarbureting Apparatus, of which the following is a specification.

This invention relates to improved means for regulating the level of the liquid in carbureting apparatus of the kind described in in my United States Patent No. 604,948, of May 31, 1808. The carbureting apparatus of this patent consists, essentially, in a cylinder closed at its two extremities and divided by a partition into two chambers of unequal ca pacity. In the larger chamber revolves a drum, upon which are wound parallelly a number of conduits the slightly-projecting front ends of which debouch in the larger chamber, whereas the rear ends open into the smaller chamber. By revolving the drum within the larger chamber, into which a quantity of liquid hydrocarbon is fed and in which air is periodically admitted by a valve, the projecting ends of the conduits will by passing through the liquid hydrocarbon, the level of which must be kept lower than the center line of the chamber, and through the airspace above the fluid-level, alternately scoop a quantity of liquid and of air, which are in successive layers conveyed through the conduit into the smaller chamber. By the intimate contact of liquid and air within the conduits the air will be charged with hydrocarbon and will in this state arrive in the second chamber, where the surplus of liquid will sink to the bottom. The second chamber is by an expansion-valve regulated to a given pressure, so that the air loaded with hydrocarbon cannot escape therefrom until this what quantity of carbureted air is drawn off for consumption, this for the purpose to render uniform the composition of the mixture of air and hydrocarbon delivered by the conduits into the second. chamber. To attain this object, I provide an air-tight reservoir in which the liquid hydrocarbon is stored under low pressure and from which it is fed to the carbureting apparatus through a special air-tight vessel disposed underneath the reservoir and in which vessel the liquid is maintained on the same level as within the carbureting apparatus.

The invention is illustrated on the annexed drawings, 13 representingthe carbureting apparatus, c the air-tight reservoir in which the liquid hydrocarbon is stored under low pressure, and a the vessel from which the liquid is fed to the carbureting apparatus through the pipe 1), connecting the lower part of the said vessel with the lower part of the carbureting apparatus.

By line a e is marked the level on which the liquid is to be maintained both in the carbureter and in the vessel a. The air-space of the vessel to communicates through pipe f with the carbureter, the pipe terminating at the point d, which indicates the level of the liquid in the carburetor, and the air-space of the reservoir 0 communicates through pipe h with the vessel a, the pipe terminating at the point e', which indicates the level of the liquid in the vessel a. The lower part of the reservoir c communicates through pipe 9 with the vessel a, this pipe terminating below the level of the liquid in the vessel a.

The operation of the apparatus is as follows: The liquid hydrocarbon is held in the reservoir c by the pressure therein being'lower than in the oarbureter B and in the vessel a communicating with the carbureter through pipef. As soon as so much liquid is consumed in the carburetor as to free the end of the pipefat the point at and the end of the pipe h at the point 'i the air of higher pressure will find access to the reservoir 0 by the pipe h and will allow so much liquid hydrocarbon to be discharged from the reservoir 0 through pipe 9 into the vessel a that the level in a and B rises to close again the ends of pipes h and f at the points i and 61, respectively.

This operation repeats itself as often as by the consumption of liquid hydrocarbon in the carbureter B the end sof pipes fand h are freed to give access to the air.

By interposing the Vessel a between the reservoir 0 and the carbureterB the air passing from the air-space of the carburetor through pipe f is saturated With hydrocarbon before it arrives into the reservoir 0, this being done for the purpose of preventing an increase of pressure in the reservoir 0, as by such an increase of pressure the operation of the apparatus might be disturbed.

WVhat I claim as my invention, and desire to secure by Letters Patent of the United States, is-

In combination with a carbureter, a lowpressure reservoir, a closed vessel located be'= neath the same, a feed-pipe from said reservoir to said vessel extending to near the bottom of the latter, an air-return pipe between said vessel and reservoir terminating above the feed-pipe and extending above the oillevel in the reservoir, and pipe communications from said vessel to the carbureter, substant-ially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

ADOLPHE ISIDORE VAN VRIESLAND. "Witnesses:

THEODORUS JAcoBUs KEYSER, AOEORI ANTOINE SCHMITT. 

